To know is to know that you know nothing. That is the meaning of true knowledge.
Who contains himself goes seldom wrong.
The man who is master of himself drinks gravely and wisely.
The superior man is universally minded and no partisan. The inferior man is a partisan and not universal.
Be strict with yourself but least reproachful of others and complaint is kept afar.
He who learns but does not think, is lost! He who thinks but does not learn is in great danger... Men of superior mind busy themselves first getting at the root of things; when they succeed, the right course is open to them.